Condenser and refrigerator having the same

ABSTRACT

A condenser and a refrigerator having the same, the condenser includes a refrigerant pipe, a plate fin coupled to one side portion of the refrigerant pipe, and a wave fin making contact with a rear surface of the plate fin. Through the structure as such, the condensation efficiency of the condenser may be enhanced, and furthermore, the condenser may be miniaturized, and thus is effective in utilizing space.

CROSS-REFERENCE TO RELATED APPLICATIONS

This application claims the priority benefit of the Korean PatentApplication No. 10-2013-0073601, filed on Jun. 26, 2013, in the KoreanIntellectual Property Office, the disclosure of which is incorporatedherein by reference.

BACKGROUND

1. Field

The following description relates to a condenser and a refrigeratorhaving the same, and more particularly, a condenser provided with animproved heat radiation structure and a refrigerator having the same.

2. Description of the Related Art

In general, a refrigerator represents a household appliance configuredto store food in a fresh manner while provided with a storagecompartment to store food, and a freezing apparatus to supply cool airto the storage compartment through a freezing cycle. The storagecompartment is divided into a refrigerating compartment to store food ina refrigerated state and a freezing compartment to store food in afrozen state.

The freezing apparatus includes a compressor to compress refrigerant athigh temperature and high pressure, a condenser to condense thecompressed refrigerant in a liquid state, an expansion valve to expandthe condensed refrigerant, and an evaporator to generate cool air byevaporating the refrigerant in a liquid state.

The condenser may release heat in a limited space, and thus animprovement of the structure of the condenser is desired.

SUMMARY

Therefore, it is an aspect of the present disclosure to provide acondenser having an enhanced condensing efficiency and having a compactsize thereof, and a refrigerator having the same.

Additional aspects of the disclosure will be set forth in part in thedescription which follows and, in part, will be apparent from thedescription, or may be learned by practice of the disclosure.

In accordance with an aspect of the present disclosure, a condenserincludes a refrigerant pipe, a plate fin and a wave fin. The refrigerantpipe may have at least a portion thereof disposed along a firstdirection, and configured in a way that a refrigerant flowstherethrough. The plate fin may be coupled to one side portion of therefrigerant pipe. The wave fin may be provided in a way to make contactwith a rear surface of the plate fin, and formed along the firstdirection in a bent manner.

The first direction may include a direction having a spiral shape on aplurality of virtual surfaces provided in parallel to each other.

The refrigerant pipe may include an inlet part and an outlet partthrough which the refrigerant is introduced and discharged, and a mainrefrigerant pipe having both end portions thereof connected to the inletpart and the outlet part, respectively, and coupled to the plate fin.

The main refrigerant pipe may include heat radiating pipes formed alongthe first direction and a bent pipe connecting end portions of the heatradiating pipes.

The plate fin may include a lower plate provided with a groove formedalong a path of the refrigerating pipe in a way that the refrigerantpipe is inserted thereinto, and an upper plate provided in a way tocover one surface of the lower plate into which the refrigerant pipe isinserted.

The heat radiating pipe may be inserted into the groove.

The wave fin may include a trough part and a crest part that are formedin a second direction perpendicular to the virtual surfaces, anddisposed in a repeated manner along the first direction.

The plate fin may be provided with the shape of a barrel wound up in adirection that surrounds the wave fin.

The refrigerant pipe and the plate fin may include aluminum.

The plate fin and the wave fin may be coupled to each other through abrazing method.

In accordance with another aspect of the present disclosure, arefrigerator includes a body, a storage compartment and a freezingapparatus. The storage compartment may be formed inside the body. Thefreezing apparatus may have a compressor to compress refrigerant, acondenser to condense the refrigerant, an expansion valve to expand therefrigerant, and an evaporator to evaporate the refrigerant, andconfigured to supply cool air to the storage compartment. The condensermay include a refrigerant pipe through which the refrigerant flows, aplate fin coupled to one side portion of the refrigerant pipe, and awave fin making contact with a rear surface of the plate fin, thecondenser provided in the shape of a barrel formed in a wound-up mannerto condense the refrigerant.

The refrigerant pipe may include an inlet part connected to thecompressor and allowing the refrigerant to be introduced therethrough,an outlet part connected to the expansion valve and allowing therefrigerant to be discharged therethrough, and a main refrigerant pipe.The main refrigerant pipe may include heat radiating pipes provided inthe form wound up in one direction with a gap of a first interval; and abent pipe connecting end portions of each of the heat radiating pipes,the main refrigerant pipe having both end portions thereof connected tothe inlet part and the outlet part, respectively, and coupled to theplate fin.

The plate fin and the wave fin may be formed between the gap of thefirst interval.

The plate fin may include an outer plate part having a groove in a wayto surround at least a portion of the main refrigerant pipe, and aninner plate part making contact with the outer plate part and providedin a way to cover the groove.

The wave fin may be provided with a plurality of trough parts and aplurality of crest parts that are repeatedly formed with respect to adirection along which the heat radiating pipes are wound up.

The wave fin may include a plurality of first wave surfaces and aplurality of second wave surfaces correspondingly disposed in a bentmanner to form a zigzag in a direction along which the heat radiatingpipes are wound up, and a plurality of trough parts and a plurality ofcrest part that are formed as the first wave surface and the second wavesurface make contact with each other.

The trough part and the crest part may be provided to make contact withthe plate fin.

A condenser in accordance with the present disclosure and a refrigeratorhaving the same are provided with improved heat radiating efficiency,and thus a miniaturization thereof may be achieved while enhancing spaceefficiency.

BRIEF DESCRIPTION OF THE DRAWINGS

These and/or other aspects of the disclosure will become apparent andmore readily appreciated from the following description of embodiments,taken in conjunction with the accompanying drawings of which:

FIG. 1 is a drawing illustrating a refrigerator in accordance with anembodiment of the present disclosure.

FIG. 2 is a perspective view illustrating a condenser in accordance withan embodiment of the present disclosure.

FIG. 3 is a partially enlarged view of the condenser in accordance withan embodiment of the present disclosure.

FIG. 4 is an exploded perspective view of the condenser in accordancewith an embodiment of the present disclosure.

FIG. 5 is a perspective view of a refrigerant pipe in accordance with anembodiment of the present disclosure.

FIG. 6 is a side view of the condenser in accordance with an embodimentof the present disclosure.

FIG. 7 is a cross-sectional view of the condenser taken with respect toa first virtual surface of FIG. 6 in accordance with an embodiment ofthe present disclosure.

FIG. 8 is a drawing showing a flow of refrigerant of the condenser inaccordance with an embodiment of the present disclosure.

DETAILED DESCRIPTION

Reference will now be made in detail to the embodiments of the presentdisclosure, examples of which are illustrated in the accompanyingdrawings, wherein like reference numerals refer to like componentsthroughout.

FIG. 1 is a drawing illustrating a refrigerator in accordance with anembodiment of the present disclosure.

Referring to FIG. 1, a refrigerator 1 in accordance with an embodimentof the present disclosure includes a body 2, a storage compartment 3formed at an inside the body 2 to store food, and a freezing apparatusto supply cool air to the storage compartment 3.

The body 2 as such is provided with the approximate shape of a boxhaving a front surface portion thereof open. The body 2 is provided withan upper wall 4, a bottom wall 5, a rear wall 6, and side walls 7.

The storage compartment 3 is provided in a way to have a front surfaceportion thereof open, and the open front surface portion of the storagecompartment 3 is open/closed by a door 8. The door 8 is hinge-coupled tothe body 2, and is able to rotate.

The freezing apparatus includes a compressor 10 configured to compressrefrigerant at high temperature and high pressure, a condenser 100configured to condense the refrigerant in a gas state into a liquidstate, an expansion valve 30 configured to expand the refrigerant at lowtemperature and low pressure, an evaporator 40 configured to evaporatethe refrigerant in a liquid state into a gas state, and a connectingpipe 20 to guide the refrigerant to pass through the above describedcomponents of the freezing apparatus.

The compressor 10 is configured to release heat to an outside as thetemperature thereof is increased to a high level in the process ofcompressing refrigerant at high temperature and high pressure. Inaddition, the condenser 100 as well is configured to release condensedheat that is taken from the refrigerant to an outside.

The compressor 10 and the condenser 100 as such are disposed at amachinery compartment 50 formed at a lower portion at a rear portion ofthe body 2. In addition, at the machinery compartment 50, a blower fan56 is disposed as the blower fan 56 is configured to cool the compressor10 and the condenser 100 by forcedly circulating air.

The machinery compartment 50 is provided to be open at a rear surfaceportion thereof, and a cover 52 is coupled to the open rear surfaceportion to cover the open rear surface portion. At the cover 52, aventilating port 54 is formed as the ventilating port 54 is configuredin a way for air to flow by communicating an inside and an outside themachinery compartment 50 even after the cover 52 is coupled to the openrear surface portion of the machinery compartment 50.

Thus, as the blower fan 56 is rotated, air is introduced to an insidethe machinery compartment 50 through the ventilating port 54 of thecover 52, and the introduced air is discharged to an outside themachinery compartment 50 through the ventilating port 54 of the cover 52again after cooling the compressor 10 and the condenser 100.

By the structure as the above, the compressor 10 and the condenser 100at an inside the machinery compartment 50 are cooled, and themaintenance of the performance of the compressor 10 and the heatexchanging efficiency of the condenser 100 are improved.

However, as the size of the machinery compartment 50 is small, the sizeof the compressor 10 and the condenser 100 are limited, and thus thesufficient condensation of refrigerant is not performed as much as afreezing cycle is operated, and accordingly, a condenser having improvedheat radiating efficiency may be needed.

FIG. 2 is a perspective view illustrating the condenser 100 inaccordance with an embodiment of the present disclosure, FIG. 3 is apartially enlarged view of the condenser 100 in accordance with anembodiment of the present disclosure, FIG. 4 is an exploded perspectiveview of the condenser 100 in accordance with an embodiment of thepresent disclosure, FIG. 5 is a perspective view of a refrigerant pipein accordance with an embodiment of the present disclosure, FIG. 6 is aside view of the condenser 100 in accordance with an embodiment of thepresent disclosure, and FIG. 7 is a cross-sectional view of thecondenser 100 with respect to a first virtual surface on FIG. 6 inaccordance with an embodiment of the present disclosure.

The condenser 100 is provided with a refrigerant pipe 110 having atleast a portion disposed along a first direction ‘W1’, and allowingrefrigerant to flow therethrough, a plate fin 130 coupled to one sideportion of the refrigerant pipe 110, and a wave fin 140 making contactwith a rear surface portion of the plate fin 130 and formed along thefirst direction ‘W1’ in a bent manner.

The condenser 100 includes the refrigerant pipe 110 and a heat radiatingpart 120.

The refrigerant pipe 110 is referred to as a pipe of the condenser 100through which the refrigerant compressed at high temperature and highpressure is passed. The shape of the refrigerant pipe 110 is not limitedhereto, but in the present disclosure, the refrigerant pipe 110 isimplemented in bent shape in multiple times.

The refrigerant pipe 110 includes a main refrigerant pipe 112 referredto as a section coupled to the heat radiating part 120, which is to bedescribed later, and allowing the heat of the refrigerant to bedischarged while passing through the heat radiating part 120, and aninlet part 116 and an outlet part 118 configured for inlet/outlet ofrefrigerant to/from the main refrigerant pipe 112. The inlet part 116and the outlet part 118 are connected to both end portions of the mainrefrigerant pipe 112, respectively, to allow the refrigerant flowingthrough the main refrigerant 112 to be introduced and dischargedtherethrough.

The main refrigerant pipe 112 includes a plurality of heat radiatingpipes 113 provided along the first direction ‘W1’, and a bent pipe 114extendedly formed from the heat radiating pipe 113 in a way to connectend portions of the heat radiating pipe 113.

As to be described hereinafter, in a case when the refrigerant pipe 110,the plate fin 130, and the wave fin 140 are provided in the shape of awound-up barrel while having the refrigerant pipe 110, the plate fin130, and for example the wave fin 140 disposed on top of one another,the heat radiating pipe 113 is provided with the shape of a spiral withrespect to a first virtual surface ‘P1’, a second virtual surface ‘P2’,a third virtual surface ‘P3’, and a fourth virtual surface ‘P4’, whileend portions of the heat radiating pipe 113 are connected by the bentpipe 114 so that refrigerant flows.

That is, the first virtual surface ‘P1’, the second virtual surface‘P2’, the third virtual surface ‘P3’, and the fourth virtual surface‘P4’ may be provided to be parallel to each other also while spacedapart with each other, and at each of the first virtual surface ‘P1’,the second virtual surface ‘P2’, the third virtual surface ‘P3’, and thefourth virtual surface ‘P4’, the heat radiating pipe 113 is disposed inthe first direction ‘W1’. The first direction ‘W1’ includes a directionhaving a spiral shape. Although as a non-limiting example, four virtualsurfaces have been shown in FIG. 6, the present disclosure is notlimited thereto. For example, one or more virtual surfaces may be used.

In a case when the heat radiating pipe 113 is wound in one direction,the heat radiating pipe 113 may be wound while having an interval of afirst gap ‘G1’ with respect to each other. That is, the interval atwhich the heat radiating pipe 113 is wound in the shape of a spiral maybe the first gap ‘G1’.

The first gap ‘G1’ is not limited hereto, the plate fin 130 and the wavefin 140 are disposed between the interval of the first gap G1.

At end portions of the main refrigerant pipe 112, the inlet part 116 andthe outlet part 118 are implemented, so that the refrigerant compressedby the compressor 10 is introduced through the inlet part 116 and isdischarged to the expansion valve 30 through the outlet part 118. Forthe above, the inlet part 116 may be connected to the compressor 10 andthe outlet part 118 may be connected to the expansion valve 30.

The heat radiating part 120 includes the plate fin 130 and the wave fin140.

The plate fin 130 is structured in a way to be directly connected to therefrigerant pipe 110 to absorb the heat of the refrigerant that ispassed through the refrigerant pipe 110.

The plate fin 130 includes an upper plate fin 134 and a lower plate fin132.

The lower plate fin 132 includes a groove 133 corresponding to an outercircumferential surface portion of the refrigerant pipe 110, so that therefrigerant pipe 110 is inserted into the groove along a path of therefrigerant pipe 110.

The groove 133 may be implemented to correspond both of the heatradiating pipe 113 and the bent pipe 114, but in the present disclosure,the groove 133 is provided to correspond to the heat radiating pipe 113.Therefore, the groove 133 may be provided in at least two units thereofalong the first direction ‘W1’ while corresponding to the heat radiatingpipes 113.

As the main refrigerant pipe 112 is inserted into the groove 133, anupper portion thereof may be covered by the upper plate fin 134. Onesurface portion of the upper plate fin 134 may be provided to cover thelower plate fin 132 together with the groove 133 into which the mainrefrigerant pipe 112 is inserted.

An inner plate part 134 a and an outer plate part 132 a may be providedwith structures identical to the upper plate fin 134 and the lower platefin 132, respectively.

As described above, the outer plate part 132 a corresponding to thelower plate fin 132 is provided with a groove 133 as to cover at least aportion of the main refrigerant pipe 112, and the inner plate part 134 acorresponding to the upper plate fin 134 may be provided in a way tocover the groove 133 while making contact with the outer plate part 132a.

At a bottom surface portion of the upper plate fin 134, the wave fin 140may be provided.

The wave fin 140 may have a plurality of first wave surfaces 142 and aplurality of second wave surfaces 144 that are correspondingly disposedin a bent manner to form a zigzag, and edge portions of the first wavesurfaces 142 making contact with edge portion of the second wavesurfaces 144 may form a crest part 148 and a trough part 146.

The first wave surface 14 and the second wave surface 144 may be formedin the shape of, for example a plane surface, but as to increase theheat radiating surface, as in an embodiment of the present disclosure,the first wave surface 14 and the second wave surface 144 are preferredto be formed in a bent manner.

The wave fin 140 is provided in a way to be bent so that the crest part148 and the trough part 146 are repeated, and the crest part 148 maymake contact with a lower portion of the lower plate fin 132 and thetrough part 146 may make contact with an upper surface portion of theupper plate fin 134.

In detail, the crest part 148 and the trough part 146 may be provided tobe disposed in a repeated manner in a plurality of times along the firstdirection ‘W1’, that is, the direction along which the heat radiatingpipe 113 is wound. That is, the crest part 148 and the trough part 146may be provided in a second direction ‘W2’ that is perpendicular to thefirst direction ‘W1’.

The crest part 148 and the trough part 146 of the wave fin 140 areprovided in the second direction ‘W2’ that is perpendicular to the firstdirection ‘W1’ so that the wave fin 140 may be wound while maintainingthe crest part 148 and the trough part 146 when the refrigerant pipe 110provided in the first direction ‘W1’ is wound up in the directionperpendicular to the plate fin 130.

In addition, through the structure as such, the air that passes throughthe wave fin 140 through the blower fan 56 may be guided through thecrest part 148 and the trough part 146, and the structure as such may beable to enhance draft efficiency as the air is passed through in adirection perpendicular to the lengthways of the heat radiating pipe113, and since the air being drafted may be concentrated in between thewave fin 140 and the plate fin 130, heat radiating efficiency may beenhanced.

The condenser 100 may be formed of material having superior heatconductivity to enhance heat radiating efficiency. The refrigeratingpipe 110 and the plate fin 130 may be formed of aluminum material.

The above described components of the condenser 100 may be assembledthrough a brazing method as to prevent leaking of refrigerant. That is,the refrigerant pipe 110, the plate fin 130, and the wave fin 140 eachmay be coated with clad material for a brazing method.

Thus, the refrigerant pipe 110 is settled at the groove 133 of the lowerplate fin 132, the upper plate fin 134 is covered on the lower plate fin132, and the wave fin 140 is disposed at one surface of the upper platefin 134 to be inserted into a brazing furnace, so that the condenser 100may be assembled.

As the temporarily assembled condenser 100 is heated at the temperatureof about 600° C. and 700° C. in the brazing furnace, the clad materialcoated on the each component is melt as the melted clad material sealsthe joint portions the each component and firmly places the componentstogether. Thus, the joint portions of the each component may be formedwhile having a certain gap as to seal the gap by use of the melted cladmaterial.

The structure of the condenser 100 in accordance with an embodiment ofthe present disclosure is not only applied to the condenser 100, but maybe applied to the evaporator 40 as a heat exchanger, as well as to anair conditioner and a refrigerator.

Through the above, within the limited space of the machinery compartment50, the heat radiating efficiency of the plurality of freezing cyclesmay be improved, and the energy that is consumed in heat radiation maybe reduced.

Through the structure as such, the condenser 100 that includes therefrigerant pipe 110 and the heat radiating part 120 may be providedwith the shape of, for example a barrel as the plate fin 130 is wound upin a direction that surrounds the wave fin 140.

That is, the plate fin 130 may be wound up in a perpendicular directionwith respect to the first direction ‘W1’ at which the heat radiatingpipe 113 is disposed, and in detail, the lower plate fin 132 may bewound up in a way that the lower plate fin 132 is disposed at an outsidethat surrounds the condenser 100.

The shape of a barrel may be formed in the shape of a body that is woundup in various shapes, such as the rectangular pillar shape as well as acylindrical shape.

Within the limited space of the machinery compartment 50, the heatradiating efficiency of the condenser 100 may be needed to be improvedas to dispose the miniaturized condenser 100.

While using the pipe-type refrigerant pipe 110 other than the tube-typerefrigerant pipe 110 for the condenser 100 in the wound-up shape of abarrel, the structure is provided in a way that the wave fin 140 isdisposed at a space in between the plate fins 130. Through the structureas such, by using the pipe-type refrigerant pipe 110, the controlling ofthe flow of refrigerant is convenient, and in addition, the refrigerantmay be made to be evenly distributed, while the improved heat radiatingeffect may be achieved as the heat radiation is taken place by the wavefin 140 even in the space in between the plate fins 130.

Hereinafter, the condenser 100 having the structure as the above and theflow of refrigerant of a refrigerator having the condenser 100 as suchwill be described.

FIG. 8 is a drawing showing the flow of a refrigerant of the condenser100 in accordance with an embodiment of the present disclosure.

The flow of refrigerant by the structures of the compressor 10, thecondenser 100, the expansion valve 30, and the evaporator 40 is alreadydescribed above and thus will be omitted, and the flow of therefrigerant at an inside the condenser 100 will be described.

First, the refrigerant introduced through the inlet part 116 is passedthrough the refrigerant pipe 113 disposed on the first virtual surface‘P1’. Then, after passing through the bent pipe 114 that connects therefrigerant pipe 113 on the first virtual surface ‘P1’ to therefrigerant pipe 113 on the second virtual surface ‘P2’, the refrigerantflows through the refrigerant pipe 113 disposed on the second virtualsurface ‘P2’, and after passing through the bent pipe 114 connected tothe refrigerant pipe 113 on the second virtual surface ‘P2’, therefrigerant flows through the refrigerant pipe 113 on the third virtualsurface ‘P3’. Through the above the refrigerant that flows to therefrigerant pipe 113 on the fourth virtual surface ‘P4’ is releasedthrough the outlet part 118 and is communicated to the expansion valve30.

During the process as the above, the refrigerant pipe 113 primarilydelivers heat to the lower plate fin 132 and the upper plate fin 134that surrounds the refrigerant pipe 113, and secondarily, the heat isdelivered to the wave fin 140 making contact with the upper plate fin134. During the heat-delivering process as such, by the flow of the airthat passes by the side surface of the condenser 100, the heat may bedischarged to an outside the condenser 100.

By having the wave fin 140 disposed in between the plate fins 130, theheat radiating surface is increased, and thus the heat radiatingefficiency is enhanced, and even in a case of having the identicalamount of heat radiation, the miniaturization of the condenser may bepossible.

Although a few embodiments of the present disclosure have been shown anddescribed, it would be appreciated by those skilled in the art thatchanges may be made in these embodiments without departing from theprinciples and spirit of the disclosure, the scope of which is definedin the claims and their equivalents.

What is claimed is:
 1. A condenser comprising: a refrigerant pipe having at least a portion thereof disposed along a first direction, and configured so that a refrigerant flows therethrough; a plate fin coupled to one side portion of the refrigerant pipe; and a wave fin provided to make contact with a rear surface portion of the plate fin, and formed along the first direction in a bent manner, wherein the refrigerant pipe comprises: an inlet part and an outlet part through which the refrigerant is introduced and discharged; and a main refrigerant pipe comprising heat radiating pipes formed along the first direction and a bent pipe connecting end portions of the heat radiating pipes, the main refrigerant pipe having both end portions thereof connected to the inlet part and the outlet part, respectively, and coupled to the plate fin.
 2. The condenser of claim 1, wherein: the first direction comprises a direction having a spiral shape on a plurality of virtual surfaces provided in parallel to each other.
 3. The condenser of claim 1, wherein: the plate fin comprises: a lower plate provided with a groove formed along a path of the refrigerating pipe so that the refrigerant pipe is inserted thereinto; and an upper plate provided to cover one surface portion of the lower plate into which the refrigerant pipe is inserted.
 4. The condenser of claim 3, wherein: the heat radiating pipe is inserted into the groove.
 5. The condenser of claim 1, wherein: the wave fin comprises a trough part and a crest part that are formed in a second direction perpendicular to the virtual surfaces, and disposed in a repeated manner along the first direction.
 6. The condenser of claim 1, wherein: the plate fin is provided with the shape of a barrel wound up in a direction that surrounds the wave fin.
 7. The condenser of claim 1, wherein: the refrigerant pipe and the plate fin include aluminum.
 8. The condenser of claim 1, wherein: the plate fin and the wave fin are coupled to each other through a brazing method.
 9. A refrigerator, comprising: a body; a storage compartment formed inside the body; and a freezing apparatus having a compressor to compress refrigerant, a condenser to condense the refrigerant, an expansion valve to expand the refrigerant, and an evaporator to evaporate the refrigerant, and configured to supply cool air to the storage compartment, wherein the condenser comprises a refrigerant pipe through which the refrigerant flows, a plate fin coupled to one side portion of the refrigerant pipe, and a wave fin provided to make contact with a rear surface of the plate fin, the condenser provided in the shape of a barrel formed in a wound-up manner to condense the refrigerant, and the refrigerant pipe comprises an inlet part connected to the compressor and allowing the refrigerant to be introduced therethrough; an outlet part connected to the expansion valve and allowing the refrigerant to be discharged therethrough; and a main refrigerant pipe comprising heat radiating pipes provided in the form wound up in one direction with a gap of a first interval; and a bent pipe to connect end portions of the heat radiating pipes, the main refrigerant pipe having both end portions thereof connected to the inlet part and the outlet part, respectively, and coupled to the plate fin.
 10. The refrigerator of claim 9, wherein the plate fin and the wave fin are formed between the gap of the first interval.
 11. The refrigerator of claim 9, wherein: the plate fin comprises an outer plate part having a groove to surround at least a portion of the main refrigerant pipe; and an inner plate part making contact with the outer plate part and provided to cover the groove.
 12. The refrigerator of claim 9, wherein: the wave fin is provided with a plurality of trough parts and a plurality of crest parts repeatedly formed with respect to a direction along which the heat radiating pipes are wound up.
 13. The refrigerator of claim 9, wherein: the wave fin comprises a plurality of first wave surfaces and a plurality of second wave surfaces correspondingly disposed in a bent manner to form a zigzag in a direction along which the heat radiating pipes are wound up; and a plurality of trough parts and a plurality of crest part formed as the first wave surface and the second wave surface make contact with each other.
 14. The refrigerator of claim 13, wherein: the trough part and the crest part are provided to make contact with the plate fin.
 15. The condenser of claim 1, wherein the wave fin is formed in at least one of a triangular shaped, a saw tooth shaped, a curved shaped, and disposed along the first direction.
 16. The refrigerator of claim 9, wherein: the wave fin is formed in at least one of a triangular shaped, a saw tooth shaped, a curved shaped with respect to a direction along which the heat radiating pipes are wound up.
 17. A condenser comprising: a spiral shaped plate fin; and a plurality of fins provided at a surface portion of the spiral shaped plate fin, wherein a refrigerant pipe having at least a portion thereof, to wrap around an outer surface portion of the spiral shaped plate fin in a spiral manner, and configured so that a refrigerant flows therethrough.
 18. The condenser of claim 17, wherein the plurality of fins is formed in at least one of a triangular shaped, a saw tooth shaped, a curved shaped, and disposed along the first direction.
 19. The condenser of claim 17, wherein the plurality of fins is provided at an inner surface portion of the plates.
 20. The condenser of claim 17, wherein the spiral shaped plate fin comprises: a lower plate provided with a groove formed along a path of the refrigerating pipe so that the refrigerant pipe is inserted thereinto; and an upper plate provided to cover one surface portion of the lower plate into which the refrigerant pipe is inserted. 